Carmignac Gestion, the French asset and wealth manager with €30bn ($45bn) under management, has revealed the winner for its first ever photojournalism prize. European photographers were tasked with capturing the theme “The Gaza Strip”.

The panel of judges was chaired by the photographer, film-maker and artist William Klein. German artist Kai Wiedenhöfer was the panels’ favourite out of a longlist of 76, with his black and white picture of refugee children playing with a plastic gun.

His prize? The dubious honour of returning to the Gaza Strip for six months, to take more photos for Carmignac Gestion.